Guerrero, R. D. I. (1992). A marine phenomenon called red tide / Rafael D. III Guerrero. Manila Bulletin.
Chicago Style (17. basım) AtıfGuerrero, Rafael D. III. "A Marine Phenomenon Called Red Tide / Rafael D. III Guerrero." Manila Bulletin 1992.
MLA (9th ed.) AtıfGuerrero, Rafael D. III. "A Marine Phenomenon Called Red Tide / Rafael D. III Guerrero." Manila Bulletin, 1992.
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